/*
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* blender.h - blender interface
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*
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* Copyright (c) 2017 Intel Corporation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* Author: Wind Yuan <feng.yuan@intel.com>
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*/
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#include "blender.h"
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namespace XCam {
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Blender::Blender (uint32_t alignment_x, uint32_t alignment_y)
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: _alignment_x (alignment_x)
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, _alignment_y (alignment_y)
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, _out_width (0)
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, _out_height (0)
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{
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}
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Blender::~Blender ()
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{
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}
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void
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Blender::set_output_size (uint32_t width, uint32_t height) {
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_out_width = XCAM_ALIGN_UP (width, get_alignment_x ());
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_out_height = XCAM_ALIGN_UP (height, get_alignment_y ());
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}
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bool
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Blender::set_merge_window (const Rect &window) {
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uint32_t alignmend_x = get_alignment_x ();
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_merge_window = window;
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_merge_window.pos_x = XCAM_ALIGN_AROUND (_merge_window.pos_x, alignmend_x);
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_merge_window.width = XCAM_ALIGN_AROUND (_merge_window.width, alignmend_x);
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XCAM_ASSERT (_merge_window.width >= (int32_t)alignmend_x);
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XCAM_LOG_DEBUG(
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"Blender merge window:(x:%d, width:%d), blend_width:%d",
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_merge_window.pos_x, _merge_window.width, _out_width);
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return true;
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}
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bool
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Blender::set_input_valid_area (const Rect &area, uint32_t index)
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{
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XCAM_ASSERT (index < XCAM_BLENDER_IMAGE_NUM);
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_input_valid_area[index] = area;
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uint32_t alignmend_x = get_alignment_x ();
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_input_valid_area[index].pos_x = XCAM_ALIGN_DOWN (_input_valid_area[index].pos_x, alignmend_x);
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_input_valid_area[index].width = XCAM_ALIGN_UP (_input_valid_area[index].width, alignmend_x);
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XCAM_LOG_DEBUG(
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"Blender buf(%d) valid area:(x:%d, width:%d)",
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index, _input_valid_area[index].pos_x, _input_valid_area[index].width);
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return true;
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}
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bool
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Blender::set_input_merge_area (const Rect &area, uint32_t index)
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{
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XCAM_ASSERT (index < XCAM_BLENDER_IMAGE_NUM);
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if (!is_merge_window_set ()) {
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XCAM_LOG_ERROR ("set_input_merge_area(idx:%d) failed, need set merge window first", index);
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return false;
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}
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_input_merge_area[index] = area;
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_input_merge_area[index].pos_x = XCAM_ALIGN_AROUND (_input_merge_area[index].pos_x, get_alignment_x ());
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_input_merge_area[index].pos_y = XCAM_ALIGN_AROUND (_input_merge_area[index].pos_y, get_alignment_y ());
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XCAM_LOG_DEBUG(
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"Blender buf(%d) merge area:(x:%d, width:%d)",
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index, _input_merge_area[index].pos_x, _input_merge_area[index].width);
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return true;
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}
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bool
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Blender::auto_calc_merge_window (
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uint32_t width0, uint32_t width1, uint32_t blend_width,
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Rect &out_window)
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{
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out_window.pos_x = blend_width - width1;
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out_window.width = (width0 + width1 - blend_width) / 2;
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out_window.pos_x = XCAM_ALIGN_AROUND (out_window.pos_x, get_alignment_x ());
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out_window.width = XCAM_ALIGN_AROUND (out_window.width, get_alignment_x ());
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if ((int)blend_width < out_window.pos_x + out_window.width)
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out_window.width = blend_width - out_window.pos_x;
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XCAM_ASSERT (out_window.width > 0 && out_window.width <= (int)blend_width);
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XCAM_ASSERT (out_window.pos_x >= 0 && out_window.pos_x <= (int)blend_width);
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return true;
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}
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XCamReturn
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Blender::blend (
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const SmartPtr<VideoBuffer> &,
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const SmartPtr<VideoBuffer> &,
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SmartPtr<VideoBuffer> &)
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{
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XCAM_LOG_ERROR ("Blender interface blend must be derived.");
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return XCAM_RETURN_ERROR_UNKNOWN;
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}
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}
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